Sina Schielke, German sprinter
Sina Schielke (born 19 May 1981 in Herdecke) is a former German sprinter. Her personal bests are 11.16 seconds in the 100 metres, 22.78 in the 200 metres, and 7.19 seconds in the indoor 60 metres.

Schielke won a silver medal in the 200 m at the 2000 World Junior Championships as well as a gold with the German 4 × 100 metres relay team. She won another medal in relay when the Germans finished second at the 2002 European Athletics Championships in Munich.